80991625

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 124540416

約数和(自身を除く): 43548791

約数列:

[1, 5, 11, 13, 23, 25, 55, 65, 115, 125, 143, 197, 253, 275, 299, 325, 575, 715, 985, 1265, 1375, 1495, 1625, 2167, 2561, 2875, 3289, 3575, 4531, 4925, 6325, 7475, 10835, 12805, 16445, 17875, 22655, 24625, 28171, 31625, 37375, 49841, 54175, 58903, 64025, 82225, 113275, 140855, 249205, 270875, 294515, 320125, 411125, 566375, 647933, 704275, 1246025, 1472575, 3239665, 3521375, 6230125, 7362875, 16198325, 80991625]

約数ペア:

[(1, 80991625), (5, 16198325), (11, 7362875), (13, 6230125), (23, 3521375), (25, 3239665), (55, 1472575), (65, 1246025), (115, 704275), (125, 647933), (143, 566375), (197, 411125), (253, 320125), (275, 294515), (299, 270875), (325, 249205), (575, 140855), (715, 113275), (985, 82225), (1265, 64025), (1375, 58903), (1495, 54175), (1625, 49841), (2167, 37375), (2561, 31625), (2875, 28171), (3289, 24625), (3575, 22655), (4531, 17875), (4925, 16445), (6325, 12805), (7475, 10835)]